Two Stereo Speakers Mounted 4

question 64

Multiple Choice

Two stereo speakers mounted 4.52 m apart on a wall emit identical sound waves. You are standing at the opposite wall of the room at a point directly between the two speakers. You walk 2.11 m
Parallel to the wall, to a location where you first notice that the sound intensity is essentially zero.
If the wall along which you are walking is 10.7 m from the wall with the speakers, what is the
Wavelength of the sound waves? The walls are cushioned to absorb sound reflections.

• A) 2.05 m
• B) 2.57 m
• C) 1.71 m
• D) 2.91 m

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Definitions:

Command Economy

An economy in which the state, rather than market forces, manages the production and distribution of goods.

Production

The process of creating goods or services using inputs like raw materials, labor, and technology, often resulting in the generation of value.

Distribution

The manner in which wealth, goods, or resources are shared or spread out across a society or among members within a community.

Colonization

The act of establishing control over a foreign land and its people, often involving settlement and exploitation of resources.